What a day, now to figure out what's happening with the car
01-03-2019, 11:00 PM
#16
Instructor
Thread Starter
If the relay wasn't working the fuse likely wouldn't be blown. I guess it's possible there is a short between the fuse and relay, but in my experience that is rare. You could verify by pulling the relay and installing a new fuse. If it doesn't blow your short is on the other side of the relay which is most likely the case.
i put a new 30A fuse in and it blew immediately ion trying to start the car. It tries to turn over, but can't, not surprisingly one I saw the led on the fuse come on.
01-03-2019, 11:02 PM
#17
Instructor
Thread Starter
again, thank you to those that can assist.
tomorrow I'll see if I can pull the coil from cylinder 1. Have to find a way to get the car in the garage first.
cylinder 1 is driver side, closest to rear, correct?
01-03-2019, 11:03 PM
#18
If the smart fuse (or any fuse) blows, that means there's an electrical path flowing to ground with very low resistance. This same path makes the LED light up. If you remove the shorted component that provides this ground path, the LED will turn off, then you know the component is thre culprit.
Look at the right side of the engine compartment. Deep inside you will see two big round electrical connectors. Just unscrew and pull apart. One at a time. Check if the LED still lights up.
Look at the right side of the engine compartment. Deep inside you will see two big round electrical connectors. Just unscrew and pull apart. One at a time. Check if the LED still lights up.
01-03-2019, 11:04 PM
#19
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01-03-2019, 11:09 PM
#20
Instructor
Thread Starter
If the smart fuse (or any fuse) blows, that means there's an electrical path flowing to ground with very low resistance. This same path makes the LED light up. If you remove the shorted component that provides this ground path, the LED will turn off, then you know the component is thre culprit.
Look at the right side of the engine compartment. Deep inside you will see two big round electrical connectors. Just unscrew and pull apart. One at a time. Check if the LED still lights up.
Look at the right side of the engine compartment. Deep inside you will see two big round electrical connectors. Just unscrew and pull apart. One at a time. Check if the LED still lights up.
pulled each one separately and turned ignition to on. Led came on while each was pulled.
01-03-2019, 11:23 PM
#21
Those connectors (actually one of them) contains the wires connected to the coils and injectors. I suggested this because these are very easy to reach and unplug.
If the LED is still ON even after BOTH are disconnected, you problem is somewhere else. Could be the O2 sensors. You can just remove the airbox and unplug the O2 sensors one by one and keep checking the LED.
If the LED is still ON even after BOTH are disconnected, you problem is somewhere else. Could be the O2 sensors. You can just remove the airbox and unplug the O2 sensors one by one and keep checking the LED.
01-03-2019, 11:29 PM
#24
Instructor
Thread Starter
Those connectors (actually one of them) contains the wires connected to the coils and injectors. I suggested this because these are very easy to reach and unplug.
If the LED is still ON even after BOTH are disconnected, you problem is somewhere else. Could be the O2 sensors. You can just remove the airbox and unplug the O2 sensors one by one and keep checking the LED.
If the LED is still ON even after BOTH are disconnected, you problem is somewhere else. Could be the O2 sensors. You can just remove the airbox and unplug the O2 sensors one by one and keep checking the LED.
01-03-2019, 11:30 PM
#25
Burning Brakes
Those connectors (actually one of them) contains the wires connected to the coils and injectors. I suggested this because these are very easy to reach and unplug.
If the LED is still ON even after BOTH are disconnected, you problem is somewhere else. Could be the O2 sensors. You can just remove the airbox and unplug the O2 sensors one by one and keep checking the LED.
If the LED is still ON even after BOTH are disconnected, you problem is somewhere else. Could be the O2 sensors. You can just remove the airbox and unplug the O2 sensors one by one and keep checking the LED.
01-03-2019, 11:32 PM
#26
Instructor
Thread Starter
but wouldn't unplugging the other connectors have caused this short to disappear temporarily?
The more I look at it, the tears appear to be in the rubber boot, not wiring.
edit: maybe is wiring too after zooming in
do you happen to know the size of socket needed to get those star bolts out?
is there a diagram showing where the other end of the wires go? This doesn't appear to be part of the coil pack, but a wiring harness.
The more I look at it, the tears appear to be in the rubber boot, not wiring.
edit: maybe is wiring too after zooming in
do you happen to know the size of socket needed to get those star bolts out?
is there a diagram showing where the other end of the wires go? This doesn't appear to be part of the coil pack, but a wiring harness.
01-04-2019, 12:01 AM
#27
Burning Brakes
but wouldn't unplugging the other connectors have caused this short to disappear temporarily?
The more I look at it, the tears appear to be in the rubber boot, not wiring.
edit: maybe is wiring too after zooming in
do you happen to know the size of socket needed to get those star bolts out?
is there a diagram showing where the other end of the wires go? This doesn't appear to be part of the coil pack, but a wiring harness.
The more I look at it, the tears appear to be in the rubber boot, not wiring.
edit: maybe is wiring too after zooming in
do you happen to know the size of socket needed to get those star bolts out?
is there a diagram showing where the other end of the wires go? This doesn't appear to be part of the coil pack, but a wiring harness.
I am not as familiar as other with the 996 wiring layout. But i too would have assumed that once the 2 round bulkhead connectors were discconected and the fuse led stayed light - that the problem would have then been inside the cabin. Again that assuming the 2 connector cut all links on the circuit between in cabin and engine compartment. The diagrams i have dont show those connectors so i dont know. Maybe someone else can chime in.
however seeing the the picture you took i think that is going to be your issue. If that does find to be rodent damage, take a good look around for more damaged wiring and in the air filter and cabin filter housings.
its 11pm on the east coast so i am off to bed. Hopefully i wake up in the am to some awesome diag info and a conclusion for you. Good luck.
01-04-2019, 12:10 AM
#28
Instructor
Thread Starter
when i zoom it that looks like rodent damage and i do see damaged wires not just the boot. Hard to tell by the picture but that does look like it is the coil connector and the wire looks to be black. The black coil wire is on the same circuit as fuse C2 so i think you are on the right path.
I am not as familiar as other with the 996 wiring layout. But i too would have assumed that once the 2 round bulkhead connectors were discconected and the fuse led stayed light - that the problem would have then been inside the cabin. Again that assuming the 2 connector cut all links on the circuit between in cabin and engine compartment. The diagrams i have dont show those connectors so i dont know. Maybe someone else can chime in.
however seeing the the picture you took i think that is going to be your issue. If that does find to be rodent damage, take a good look around for more damaged wiring and in the air filter and cabin filter housings.
its 11pm on the east coast so i am off to bed. Hopefully i wake up in the am to some awesome diag info and a conclusion for you. Good luck.
I am not as familiar as other with the 996 wiring layout. But i too would have assumed that once the 2 round bulkhead connectors were discconected and the fuse led stayed light - that the problem would have then been inside the cabin. Again that assuming the 2 connector cut all links on the circuit between in cabin and engine compartment. The diagrams i have dont show those connectors so i dont know. Maybe someone else can chime in.
however seeing the the picture you took i think that is going to be your issue. If that does find to be rodent damage, take a good look around for more damaged wiring and in the air filter and cabin filter housings.
its 11pm on the east coast so i am off to bed. Hopefully i wake up in the am to some awesome diag info and a conclusion for you. Good luck.
trying to track down where to buy this harness and a diagram of where the other end goes. Not finding anything on pelicanparts or suncoast porsche websites yet.
thanks for the help.
01-04-2019, 01:17 AM
#29
The power to the coils and injectors come from pin4 of one of the big round connector called x59/1, which connects to relay #2 (ignition/O2 sensor), then to fuse C2.
What if you remove relay#2 under the rear parcel shelf? Does the LED stays lit?
What if you remove relay#2 under the rear parcel shelf? Does the LED stays lit?